/* * (C) Copyright 2001-2003 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * * Modified during 2001 by * Advanced Communications Technologies (Australia) Pty. Ltd. * Howard Walker, Tuong Vu-Dinh * * (C) Copyright 2001, Stuart Hughes, Lineo Inc, stuarth@lineo.com * Added support for the 16M dram simm on the 8260ads boards * * (C) Copyright 2003-2004 Arabella Software Ltd. * Yuli Barcohen <yuli@arabellasw.com> * Added support for SDRAM DIMMs SPD EEPROM, MII, Ethernet PHY init. * * Copyright (c) 2005 MontaVista Software, Inc. * Vitaly Bordug <vbordug@ru.mvista.com> * Added support for PCI. * * See file CREDITS for list of people who contributed to this * project. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of * the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA */ #include <common.h> #include <ioports.h> #include <mpc8260.h> #include <asm/m8260_pci.h> #include <i2c.h> #include <spd.h> #include <miiphy.h> #ifdef CONFIG_PCI #include <pci.h> #endif /* * I/O Port configuration table * * if conf is 1, then that port pin will be configured at boot time * according to the five values podr/pdir/ppar/psor/pdat for that entry */ #define CFG_FCC1 (CONFIG_ETHER_INDEX == 1) #define CFG_FCC2 (CONFIG_ETHER_INDEX == 2) #define CFG_FCC3 (CONFIG_ETHER_INDEX == 3) const iop_conf_t iop_conf_tab[4][32] = { /* Port A configuration */ { /* conf ppar psor pdir podr pdat */ /* PA31 */ { CFG_FCC1, 1, 1, 0, 0, 0 }, /* FCC1 MII COL */ /* PA30 */ { CFG_FCC1, 1, 1, 0, 0, 0 }, /* FCC1 MII CRS */ /* PA29 */ { CFG_FCC1, 1, 1, 1, 0, 0 }, /* FCC1 MII TX_ER */ /* PA28 */ { CFG_FCC1, 1, 1, 1, 0, 0 }, /* FCC1 MII TX_EN */ /* PA27 */ { CFG_FCC1, 1, 1, 0, 0, 0 }, /* FCC1 MII RX_DV */ /* PA26 */ { CFG_FCC1, 1, 1, 0, 0, 0 }, /* FCC1 MII RX_ER */ /* PA25 */ { 0, 0, 0, 0, 0, 0 }, /* PA25 */ /* PA24 */ { 0, 0, 0, 0, 0, 0 }, /* PA24 */ /* PA23 */ { 0, 0, 0, 0, 0, 0 }, /* PA23 */ /* PA22 */ { 0, 0, 0, 0, 0, 0 }, /* PA22 */ /* PA21 */ { CFG_FCC1, 1, 0, 1, 0, 0 }, /* FCC1 MII TxD[3] */ /* PA20 */ { CFG_FCC1, 1, 0, 1, 0, 0 }, /* FCC1 MII TxD[2] */ /* PA19 */ { CFG_FCC1, 1, 0, 1, 0, 0 }, /* FCC1 MII TxD[1] */ /* PA18 */ { CFG_FCC1, 1, 0, 1, 0, 0 }, /* FCC1 MII TxD[0] */ /* PA17 */ { CFG_FCC1, 1, 0, 0, 0, 0 }, /* FCC1 MII RxD[0] */ /* PA16 */ { CFG_FCC1, 1, 0, 0, 0, 0 }, /* FCC1 MII RxD[1] */ /* PA15 */ { CFG_FCC1, 1, 0, 0, 0, 0 }, /* FCC1 MII RxD[2] */ /* PA14 */ { CFG_FCC1, 1, 0, 0, 0, 0 }, /* FCC1 MII RxD[3] */ /* PA13 */ { 0, 0, 0, 0, 0, 0 }, /* PA13 */ /* PA12 */ { 0, 0, 0, 0, 0, 0 }, /* PA12 */ /* PA11 */ { 0, 0, 0, 0, 0, 0 }, /* PA11 */ /* PA10 */ { 0, 0, 0, 0, 0, 0 }, /* PA10 */ /* PA9 */ { 0, 0, 0, 0, 0, 0 }, /* PA9 */ /* PA8 */ { 0, 0, 0, 0, 0, 0 }, /* PA8 */ /* PA7 */ { 0, 0, 0, 1, 0, 0 }, /* PA7 */ /* PA6 */ { 0, 0, 0, 0, 0, 0 }, /* PA6 */ /* PA5 */ { 0, 0, 0, 1, 0, 0 }, /* PA5 */ /* PA4 */ { 0, 0, 0, 1, 0, 0 }, /* PA4 */ /* PA3 */ { 0, 0, 0, 1, 0, 0 }, /* PA3 */ /* PA2 */ { 0, 0, 0, 1, 0, 0 }, /* PA2 */ /* PA1 */ { 0, 0, 0, 0, 0, 0 }, /* PA1 */ /* PA0 */ { 0, 0, 0, 1, 0, 0 } /* PA0 */ }, /* Port B configuration */ { /* conf ppar psor pdir podr pdat */ /* PB31 */ { CFG_FCC2, 1, 0, 1, 0, 0 }, /* FCC2 MII TX_ER */ /* PB30 */ { CFG_FCC2, 1, 0, 0, 0, 0 }, /* FCC2 MII RX_DV */ /* PB29 */ { CFG_FCC2, 1, 1, 1, 0, 0 }, /* FCC2 MII TX_EN */ /* PB28 */ { CFG_FCC2, 1, 0, 0, 0, 0 }, /* FCC2 MII RX_ER */ /* PB27 */ { CFG_FCC2, 1, 0, 0, 0, 0 }, /* FCC2 MII COL */ /* PB26 */ { CFG_FCC2, 1, 0, 0, 0, 0 }, /* FCC2 MII CRS */ /* PB25 */ { CFG_FCC2, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[3] */ /* PB24 */ { CFG_FCC2, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[2] */ /* PB23 */ { CFG_FCC2, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[1] */ /* PB22 */ { CFG_FCC2, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[0] */ /* PB21 */ { CFG_FCC2, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[0] */ /* PB20 */ { CFG_FCC2, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[1] */ /* PB19 */ { CFG_FCC2, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[2] */ /* PB18 */ { CFG_FCC2, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[3] */ /* PB17 */ { CFG_FCC3, 1, 0, 0, 0, 0 }, /* FCC3:RX_DIV */ /* PB16 */ { CFG_FCC3, 1, 0, 0, 0, 0 }, /* FCC3:RX_ERR */ /* PB15 */ { CFG_FCC3, 1, 0, 1, 0, 0 }, /* FCC3:TX_ERR */ /* PB14 */ { CFG_FCC3, 1, 0, 1, 0, 0 }, /* FCC3:TX_EN */ /* PB13 */ { CFG_FCC3, 1, 0, 0, 0, 0 }, /* FCC3:COL */ /* PB12 */ { CFG_FCC3, 1, 0, 0, 0, 0 }, /* FCC3:CRS */ /* PB11 */ { CFG_FCC3, 1, 0, 0, 0, 0 }, /* FCC3:RXD */ /* PB10 */ { CFG_FCC3, 1, 0, 0, 0, 0 }, /* FCC3:RXD */ /* PB9 */ { CFG_FCC3, 1, 0, 0, 0, 0 }, /* FCC3:RXD */ /* PB8 */ { CFG_FCC3, 1, 0, 0, 0, 0 }, /* FCC3:RXD */ /* PB7 */ { CFG_FCC3, 1, 0, 1, 0, 0 }, /* FCC3:TXD */ /* PB6 */ { CFG_FCC3, 1, 0, 1, 0, 0 }, /* FCC3:TXD */ /* PB5 */ { CFG_FCC3, 1, 0, 1, 0, 0 }, /* FCC3:TXD */ /* PB4 */ { CFG_FCC3, 1, 0, 1, 0, 0 }, /* FCC3:TXD */ /* PB3 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */ /* PB2 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */ /* PB1 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */ /* PB0 */ { 0, 0, 0, 0, 0, 0 } /* pin doesn't exist */ }, /* Port C */ { /* conf ppar psor pdir podr pdat */ /* PC31 */ { 0, 0, 0, 0, 0, 0 }, /* PC31 */ /* PC30 */ { 0, 0, 0, 0, 0, 0 }, /* PC30 */ /* PC29 */ { 0, 0, 0, 0, 0, 0 }, /* PC29 */ /* PC28 */ { 0, 0, 0, 0, 0, 0 }, /* PC28 */ /* PC27 */ { 0, 0, 0, 0, 0, 0 }, /* PC27 */ /* PC26 */ { 0, 0, 0, 0, 0, 0 }, /* PC26 */ /* PC25 */ { 0, 0, 0, 0, 0, 0 }, /* PC25 */ /* PC24 */ { 0, 0, 0, 0, 0, 0 }, /* PC24 */ /* PC23 */ { 0, 0, 0, 0, 0, 0 }, /* PC23 */ /* PC22 */ { CFG_FCC1, 1, 0, 0, 0, 0 }, /* FCC1 MII Tx Clock (CLK10) */ /* PC21 */ { CFG_FCC1, 1, 0, 0, 0, 0 }, /* FCC1 MII Rx Clock (CLK11) */ /* PC20 */ { 0, 0, 0, 0, 0, 0 }, /* PC20 */ #if CONFIG_ADSTYPE == CFG_8272ADS /* PC19 */ { 1, 0, 0, 1, 0, 0 }, /* FETHMDC */ /* PC18 */ { 1, 0, 0, 0, 0, 0 }, /* FETHMDIO */ /* PC17 */ { CFG_FCC2, 1, 0, 0, 0, 0 }, /* FCC2 MII Rx Clock (CLK15) */ /* PC16 */ { CFG_FCC2, 1, 0, 0, 0, 0 }, /* FCC2 MII Tx Clock (CLK16) */ #else /* PC19 */ { CFG_FCC2, 1, 0, 0, 0, 0 }, /* FCC2 MII Rx Clock (CLK13) */ /* PC18 */ { CFG_FCC2, 1, 0, 0, 0, 0 }, /* FCC2 MII Tx Clock (CLK14) */ /* PC17 */ { 0, 0, 0, 0, 0, 0 }, /* PC17 */ /* PC16 */ { 0, 0, 0, 0, 0, 0 }, /* PC16 */ #endif /* CONFIG_ADSTYPE == CFG_8272ADS */ /* PC15 */ { 0, 0, 0, 0, 0, 0 }, /* PC15 */ /* PC14 */ { 0, 0, 0, 0, 0, 0 }, /* PC14 */ /* PC13 */ { 0, 0, 0, 0, 0, 0 }, /* PC13 */ /* PC12 */ { 0, 0, 0, 0, 0, 0 }, /* PC12 */ /* PC11 */ { 0, 0, 0, 0, 0, 0 }, /* PC11 */ #if CONFIG_ADSTYPE == CFG_8272ADS /* PC10 */ { 0, 0, 0, 0, 0, 0 }, /* PC10 */ /* PC9 */ { 0, 0, 0, 0, 0, 0 }, /* PC9 */ #else /* PC10 */ { 1, 0, 0, 1, 0, 0 }, /* FETHMDC */ /* PC9 */ { 1, 0, 0, 0, 0, 0 }, /* FETHMDIO */ #endif /* CONFIG_ADSTYPE == CFG_8272ADS */ /* PC8 */ { 0, 0, 0, 0, 0, 0 }, /* PC8 */ /* PC7 */ { 0, 0, 0, 0, 0, 0 }, /* PC7 */ /* PC6 */ { 0, 0, 0, 0, 0, 0 }, /* PC6 */ /* PC5 */ { 0, 0, 0, 0, 0, 0 }, /* PC5 */ /* PC4 */ { 0, 0, 0, 0, 0, 0 }, /* PC4 */ /* PC3 */ { 0, 0, 0, 0, 0, 0 }, /* PC3 */ /* PC2 */ { 0, 0, 0, 0, 0, 0 }, /* PC2 */ /* PC1 */ { 0, 0, 0, 0, 0, 0 }, /* PC1 */ /* PC0 */ { 0, 0, 0, 0, 0, 0 }, /* PC0 */ }, /* Port D */ { /* conf ppar psor pdir podr pdat */ /* PD31 */ { 1, 1, 0, 0, 0, 0 }, /* SCC1 UART RxD */ /* PD30 */ { 1, 1, 1, 1, 0, 0 }, /* SCC1 UART TxD */ /* PD29 */ { 0, 0, 0, 0, 0, 0 }, /* PD29 */ /* PD28 */ { 0, 1, 0, 0, 0, 0 }, /* PD28 */ /* PD27 */ { 0, 1, 1, 1, 0, 0 }, /* PD27 */ /* PD26 */ { 0, 0, 0, 1, 0, 0 }, /* PD26 */ /* PD25 */ { 0, 0, 0, 1, 0, 0 }, /* PD25 */ /* PD24 */ { 0, 0, 0, 1, 0, 0 }, /* PD24 */ /* PD23 */ { 0, 0, 0, 1, 0, 0 }, /* PD23 */ /* PD22 */ { 0, 0, 0, 1, 0, 0 }, /* PD22 */ /* PD21 */ { 0, 0, 0, 1, 0, 0 }, /* PD21 */ /* PD20 */ { 0, 0, 0, 1, 0, 0 }, /* PD20 */ /* PD19 */ { 0, 0, 0, 1, 0, 0 }, /* PD19 */ /* PD18 */ { 0, 0, 0, 1, 0, 0 }, /* PD18 */ /* PD17 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXPRTY */ /* PD16 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXPRTY */ /* PD15 */ { 1, 1, 1, 0, 1, 0 }, /* I2C SDA */ /* PD14 */ { 1, 1, 1, 0, 1, 0 }, /* I2C SCL */ /* PD13 */ { 0, 0, 0, 0, 0, 0 }, /* PD13 */ /* PD12 */ { 0, 0, 0, 0, 0, 0 }, /* PD12 */ /* PD11 */ { 0, 0, 0, 0, 0, 0 }, /* PD11 */ /* PD10 */ { 0, 0, 0, 0, 0, 0 }, /* PD10 */ /* PD9 */ { 0, 1, 0, 1, 0, 0 }, /* SMC1 TXD */ /* PD8 */ { 0, 1, 0, 0, 0, 0 }, /* SMC1 RXD */ /* PD7 */ { 0, 0, 0, 1, 0, 1 }, /* PD7 */ /* PD6 */ { 0, 0, 0, 1, 0, 1 }, /* PD6 */ /* PD5 */ { 0, 0, 0, 1, 0, 1 }, /* PD5 */ /* PD4 */ { 0, 0, 0, 1, 0, 1 }, /* PD4 */ /* PD3 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */ /* PD2 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */ /* PD1 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */ /* PD0 */ { 0, 0, 0, 0, 0, 0 } /* pin doesn't exist */ } }; void reset_phy (void) { vu_long *bcsr = (vu_long *)CFG_BCSR; /* Reset the PHY */ #if CFG_PHY_ADDR == 0 bcsr[1] &= ~(FETHIEN1 | FETH1_RST); udelay(2); bcsr[1] |= FETH1_RST; #else bcsr[3] &= ~(FETHIEN2 | FETH2_RST); udelay(2); bcsr[3] |= FETH2_RST; #endif /* CFG_PHY_ADDR == 0 */ udelay(1000); #ifdef CONFIG_MII #if CONFIG_ADSTYPE >= CFG_PQ2FADS /* * Do not bypass Rx/Tx (de)scrambler (fix configuration error) * Enable autonegotiation. */ bb_miiphy_write(NULL, CFG_PHY_ADDR, 16, 0x610); bb_miiphy_write(NULL, CFG_PHY_ADDR, PHY_BMCR, PHY_BMCR_AUTON | PHY_BMCR_RST_NEG); #else /* * Ethernet PHY is configured (by means of configuration pins) * to work at 10Mb/s only. We reconfigure it using MII * to advertise all capabilities, including 100Mb/s, and * restart autonegotiation. */ /* Advertise all capabilities */ bb_miiphy_write(NULL, CFG_PHY_ADDR, PHY_ANAR, 0x01E1); /* Do not bypass Rx/Tx (de)scrambler */ bb_miiphy_write(NULL, CFG_PHY_ADDR, PHY_DCR, 0x0000); bb_miiphy_write(NULL, CFG_PHY_ADDR, PHY_BMCR, PHY_BMCR_AUTON | PHY_BMCR_RST_NEG); #endif /* CONFIG_ADSTYPE == CFG_PQ2FADS */ #endif /* CONFIG_MII */ } #ifdef CONFIG_PCI typedef struct pci_ic_s { unsigned long pci_int_stat; unsigned long pci_int_mask; }pci_ic_t; #endif int board_early_init_f (void) { vu_long *bcsr = (vu_long *)CFG_BCSR; #ifdef CONFIG_PCI volatile pci_ic_t* pci_ic = (pci_ic_t *) CFG_PCI_INT; /* mask alll the PCI interrupts */ pci_ic->pci_int_mask |= 0xfff00000; #endif #if (CONFIG_CONS_INDEX == 1) || (CONFIG_KGDB_INDEX == 1) bcsr[1] &= ~RS232EN_1; #endif #if (CONFIG_CONS_INDEX > 1) || (CONFIG_KGDB_INDEX > 1) bcsr[1] &= ~RS232EN_2; #endif #if CONFIG_ADSTYPE != CFG_8260ADS /* PCI mode can be selected */ #if CONFIG_ADSTYPE == CFG_PQ2FADS if ((bcsr[3] & BCSR_PCI_MODE) == 0) /* PCI mode selected by JP9 */ #endif /* CONFIG_ADSTYPE == CFG_PQ2FADS */ { volatile immap_t *immap = (immap_t *) CFG_IMMR; immap->im_clkrst.car_sccr |= M826X_SCCR_PCI_MODE_EN; immap->im_siu_conf.sc_siumcr = (immap->im_siu_conf.sc_siumcr & ~SIUMCR_LBPC11) | SIUMCR_LBPC01; } #endif /* CONFIG_ADSTYPE != CFG_8260ADS */ return 0; } #define ns2clk(ns) (ns / (1000000000 / CONFIG_8260_CLKIN) + 1) long int initdram (int board_type) { #if CONFIG_ADSTYPE == CFG_PQ2FADS long int msize = 32; #elif CONFIG_ADSTYPE == CFG_8272ADS long int msize = 64; #else long int msize = 16; #endif #ifndef CFG_RAMBOOT volatile immap_t *immap = (immap_t *) CFG_IMMR; volatile memctl8260_t *memctl = &immap->im_memctl; volatile uchar *ramaddr, c = 0xff; uint or; uint psdmr; uint psrt; int i; immap->im_siu_conf.sc_ppc_acr = 0x00000002; immap->im_siu_conf.sc_ppc_alrh = 0x01267893; immap->im_siu_conf.sc_tescr1 = 0x00004000; memctl->memc_mptpr = CFG_MPTPR; #ifdef CFG_LSDRAM_BASE /* Initialise local bus SDRAM only if the pins are configured as local bus pins and not as PCI. The configuration is determined by the HRCW. */ if ((immap->im_siu_conf.sc_siumcr & SIUMCR_LBPC11) == SIUMCR_LBPC00) { memctl->memc_lsrt = CFG_LSRT; #if CONFIG_ADSTYPE == CFG_PQ2FADS /* CS3 */ memctl->memc_or3 = 0xFF803280; memctl->memc_br3 = CFG_LSDRAM_BASE | 0x00001861; #else /* CS4 */ memctl->memc_or4 = 0xFFC01480; memctl->memc_br4 = CFG_LSDRAM_BASE | 0x00001861; #endif /* CONFIG_ADSTYPE == CFG_PQ2FADS */ memctl->memc_lsdmr = CFG_LSDMR | 0x28000000; ramaddr = (uchar *) CFG_LSDRAM_BASE; *ramaddr = c; memctl->memc_lsdmr = CFG_LSDMR | 0x08000000; for (i = 0; i < 8; i++) *ramaddr = c; memctl->memc_lsdmr = CFG_LSDMR | 0x18000000; *ramaddr = c; memctl->memc_lsdmr = CFG_LSDMR | 0x40000000; } #endif /* CFG_LSDRAM_BASE */ /* Init 60x bus SDRAM */ #ifdef CONFIG_SPD_EEPROM { spd_eeprom_t spd; uint pbi, bsel, rowst, lsb, tmp; i2c_read (CONFIG_SPD_ADDR, 0, 1, (uchar *) & spd, sizeof (spd)); /* Bank-based interleaving is not supported for physical bank sizes greater than 128MB which is encoded as 0x20 in SPD */ pbi = (spd.row_dens > 32) ? 1 : CONFIG_SDRAM_PBI; msize = spd.nrows * (4 * spd.row_dens); /* Mixed size not supported */ or = ~(msize - 1) << 20; /* SDAM */ switch (spd.nbanks) { /* BPD */ case 2: bsel = 1; break; case 4: bsel = 2; or |= 0x00002000; break; case 8: bsel = 3; or |= 0x00004000; break; } lsb = 3; /* For 64-bit port, lsb is 3 bits */ if (pbi) { /* Bus partition depends on interleaving */ rowst = 32 - (spd.nrow_addr + spd.ncol_addr + bsel + lsb); or |= (rowst << 9); /* ROWST */ } else { rowst = 32 - (spd.nrow_addr + spd.ncol_addr + lsb); or |= ((rowst * 2 - 12) << 9); /* ROWST */ } or |= ((spd.nrow_addr - 9) << 6); /* NUMR */ psdmr = (pbi << 31); /* PBI */ /* Bus multiplexing parameters */ tmp = 32 - (lsb + spd.nrow_addr); /* Tables 10-19 and 10-20 */ psdmr |= ((tmp - (rowst - 5) - 13) << 24); /* SDAM */ psdmr |= ((tmp - 3 - 12) << 21); /* BSMA */ tmp = (31 - lsb - 10) - tmp; /* Pin connected to SDA10 is (31 - lsb - 10). rowst is multiplexed over (32 - (lsb + spd.nrow_addr)), so (rowst + tmp) alternates with AP. */ if (pbi) /* Table 10-7 */ psdmr |= ((10 - (rowst + tmp)) << 18); /* SDA10 */ else psdmr |= ((12 - (rowst + tmp)) << 18); /* SDA10 */ /* SDRAM device-specific parameters */ tmp = ns2clk (70); /* Refresh recovery is not in SPD, so assume 70ns */ switch (tmp) { /* RFRC */ case 1: case 2: psdmr |= (1 << 15); break; case 3: case 4: case 5: case 6: case 7: case 8: psdmr |= ((tmp - 2) << 15); break; default: psdmr |= (7 << 15); } psdmr |= (ns2clk (spd.trp) % 8 << 12); /* PRETOACT */ psdmr |= (ns2clk (spd.trcd) % 8 << 9); /* ACTTORW */ /* BL=0 because for 64-bit SDRAM burst length must be 4 */ /* LDOTOPRE ??? */ for (i = 0, tmp = spd.write_lat; (i < 4) && ((tmp & 1) == 0); i++) tmp >>= 1; switch (i) { /* WRC */ case 0: case 1: psdmr |= (1 << 4); break; case 2: case 3: psdmr |= (i << 4); break; } /* EAMUX=0 - no external address multiplexing */ /* BUFCMD=0 - no external buffers */ for (i = 1, tmp = spd.cas_lat; (i < 3) && ((tmp & 1) == 0); i++) tmp >>= 1; psdmr |= i; /* CL */ switch (spd.refresh & 0x7F) { case 1: tmp = 3900; break; case 2: tmp = 7800; break; case 3: tmp = 31300; break; case 4: tmp = 62500; break; case 5: tmp = 125000; break; default: tmp = 15625; } psrt = tmp / (1000000000 / CONFIG_8260_CLKIN * ((memctl->memc_mptpr >> 8) + 1)) - 1; #ifdef SPD_DEBUG printf ("\nDIMM type: %-18.18s\n", spd.mpart); printf ("SPD size: %d\n", spd.info_size); printf ("EEPROM size: %d\n", 1 << spd.chip_size); printf ("Memory type: %d\n", spd.mem_type); printf ("Row addr: %d\n", spd.nrow_addr); printf ("Column addr: %d\n", spd.ncol_addr); printf ("# of rows: %d\n", spd.nrows); printf ("Row density: %d\n", spd.row_dens); printf ("# of banks: %d\n", spd.nbanks); printf ("Data width: %d\n", 256 * spd.dataw_msb + spd.dataw_lsb); printf ("Chip width: %d\n", spd.primw); printf ("Refresh rate: %02X\n", spd.refresh); printf ("CAS latencies: %02X\n", spd.cas_lat); printf ("Write latencies: %02X\n", spd.write_lat); printf ("tRP: %d\n", spd.trp); printf ("tRCD: %d\n", spd.trcd); printf ("OR=%X, PSDMR=%08X, PSRT=%0X\n", or, psdmr, psrt); #endif /* SPD_DEBUG */ } #else /* !CONFIG_SPD_EEPROM */ or = CFG_OR2; psdmr = CFG_PSDMR; psrt = CFG_PSRT; #endif /* CONFIG_SPD_EEPROM */ memctl->memc_psrt = psrt; memctl->memc_or2 = or; memctl->memc_br2 = CFG_SDRAM_BASE | 0x00000041; ramaddr = (uchar *) CFG_SDRAM_BASE; memctl->memc_psdmr = psdmr | 0x28000000; /* Precharge all banks */ *ramaddr = c; memctl->memc_psdmr = psdmr | 0x08000000; /* CBR refresh */ for (i = 0; i < 8; i++) *ramaddr = c; memctl->memc_psdmr = psdmr | 0x18000000; /* Mode Register write */ *ramaddr = c; memctl->memc_psdmr = psdmr | 0x40000000; /* Refresh enable */ *ramaddr = c; #endif /* CFG_RAMBOOT */ /* return total 60x bus SDRAM size */ return (msize * 1024 * 1024); } int checkboard (void) { #if CONFIG_ADSTYPE == CFG_8260ADS puts ("Board: Motorola MPC8260ADS\n"); #elif CONFIG_ADSTYPE == CFG_8266ADS puts ("Board: Motorola MPC8266ADS\n"); #elif CONFIG_ADSTYPE == CFG_PQ2FADS puts ("Board: Motorola PQ2FADS-ZU\n"); #elif CONFIG_ADSTYPE == CFG_8272ADS puts ("Board: Motorola MPC8272ADS\n"); #else puts ("Board: unknown\n"); #endif return 0; } #ifdef CONFIG_PCI struct pci_controller hose; extern void pci_mpc8250_init(struct pci_controller *); void pci_init_board(void) { pci_mpc8250_init(&hose); } #endif